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Author Topic: WANTED: Two Turns-Counter-Drives for Vacuum Variables, two 813s.  (Read 1466 times)
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K1JJ
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"Let's go kayaking, Tommy!" - Yaz


« on: April 18, 2020, 02:45:33 PM »

I'm building up a new pair of 813s plate modulated by a pair.  I have all the parts, including two vacuum variables for the project except for two 1/4" shaft turns counters.  I prefer the military older metal-type if possible.     I see MFJ sells plastic ones if I can't find metal.

Anyone have some they want to sell?  I can also use two 813 tubes as backups.

Please send a PM on this BB.

Thanks.

Tom, K1JJ   
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Use an "AM Courtesy Filter" to limit transmit audio bandwidth  +-4.5 KHz, +-6.0 KHz or +-8.0 KHz when needed.  Easily done in DSP.

Wise Words : "I'm as old as I've ever been... and I'm as young as I'll ever be."

There's nothing like an old dog.
K1JJ
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"Let's go kayaking, Tommy!" - Yaz


« Reply #1 on: April 20, 2020, 04:47:14 PM »

I found a decent set of turns counters for $59.95 each. Max Gain has always been a good parts house for me.

https://mgs4u.com/product/model-rav-t14-deluxe-turns-counting-dial-assembly/?v=7516fd43adaa


I'm still looking a pair of 813s as backups to my new project....   There are quite a few on eBay, but I prefer to buy them from someone I know on AMFone...  Grin



T
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Use an "AM Courtesy Filter" to limit transmit audio bandwidth  +-4.5 KHz, +-6.0 KHz or +-8.0 KHz when needed.  Easily done in DSP.

Wise Words : "I'm as old as I've ever been... and I'm as young as I'll ever be."

There's nothing like an old dog.
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